Peak Conventional Green Antifreeze 50/50 is made for older cars and light duty diesel applications.  It provides protection from freezing, overheating, rust and corrosion.  It is compatible with all conventional green antifreeze and provides year round protection against rust and corrosion.  Made for use in Ford and Chrysler 2000 and earlier, GM 1995 and earlier, and for all makes and models that are 1989 and earlier.